# Verifieddit — Verify Content Authenticity with C2PA

> Cryptographic proof of where any photo, video, or audio came from. Read in your browser. Free. Nothing uploaded.

## What is Verifieddit?

Verifieddit is a free public verification tool for C2PA Content Credentials. Drop any image, video, or audio file into the browser and it will read the embedded cryptographic manifest, verify the signature, and tell you:

- Whether the file has C2PA credentials at all
- Who signed it (camera, software, platform)
- Whether the signature is valid
- Whether the signer is in the trusted CA list
- Whether the file has been modified since signing
- Whether the content was AI-generated (via C2PA assertions and a server-side AI-detection fallback)

All cryptographic verification happens in WebAssembly inside your browser. The file never leaves your device.

## Who is it for?

Verifieddit serves two audiences with the same tool:

- **Free tier (consumer wedge)** — anyone who wants to check if a file is real: journalists, researchers, fact-checkers, creators, ordinary readers.
- **Enterprise** — compliance teams, content licensors, marketing and legal departments at EU-regulated content producers preparing for **EU AI Act Article 50** (August 2026). Free verification here demonstrates the technology; enterprise content credential issuing at scale happens at the paired domain **[trusteddit.com](https://trusteddit.com/?utm_source=verifieddit&utm_medium=index-md&utm_campaign=audience)**.

## Verdict states

Verifieddit reports one of four states per file:

| State | Meaning |
|-------|---------|
| **Trusted** | C2PA credentials present, signature valid, signer recognised in the trust list |
| **Valid** | C2PA credentials present, signature valid, signer not in trust list (signer's identity not independently verified) |
| **Invalid** | C2PA credentials present but content modified after signing — the signature no longer matches |
| **Unsigned** | No C2PA credentials at all — content origin cannot be cryptographically verified |

## Supported file types

Images: JPG, PNG, WebP, HEIC, AVIF, TIFF, GIF
Videos: MP4, MOV, AVI, WebM
Audio: MP3, WAV, OGG, FLAC
Other: PDF, fonts (TTF/OTF/WOFF/WOFF2)

## Why this matters in 2026

- **EU AI Act Article 50 (August 2026)**: transparency obligations for AI-generated and AI-modified content go into force. Verifiable provenance becomes a compliance requirement, not a nice-to-have.
- **Content licensors**: stock and media platforms now warrant that licensed assets are not AI-generated. C2PA-signed content is the defensible side of that line.
- **Marketing & legal teams**: need audit trails proving what content was human-made, when, and by whom.

Free verification here today. Enterprise issuing at [trusteddit.com](https://trusteddit.com/?utm_source=verifieddit&utm_medium=index-md&utm_campaign=closing-cta).

## Open and conformant

- **MIT licensed** — source on [GitHub](https://github.com/Sanmarcsoft/verifieddit-www)
- **C2PA conformant validator** — passes the official C2PA test vectors
- **CAI member** — Content Authenticity Initiative
- **No server uploads** — all crypto runs in WebAssembly in the browser
- **GDPR compliant** — see [/privacy](/privacy)